Lubricator



am 1, 1924 H, F. BlcKEL ET vAl- LUBRICATOR Filed may 8. 1922 PatentedJan., 1, 1924.

UNITED srnras PATIENT OFFICE.

HENRY F. BICKEL, OF PLAINFIELD, NEW JERSEY, AND BLYTHE J. lVIIN'NIIER,I0F

WATER/TOWN, NE'W YORK, ASSIGNORS TO THE-NEW YORK .AIR BRAKE COMPANY, Al

CORPORATION OF NEW YORK.

LUBnIcA'roR. I

Application mea may '8, 1922. serial No. 559,392.

To all 'whom it may concern: p

Be it known that we, HENRY F. BICKEL and BLYTHE J. MINNIER, citizens ofthe United States, residing, respectively, at

of New Jersey, and at Watertown, in the county of Jefferson and State ofNew York, have invented certain new and useful Improvements inLubricators, of which the following is a specification.

This invention relates tol lubricatorsfan'd particularly to lubricatorsused with steam engine cylinders and air pump cylinders.

The importantfeature of novelty is the use of ajacket surrounding theoil chamber or reservoir and connected with the working space of thelubricated steam engine cylinder or air pump in suchl manner as to re-.ceive hea-t therefrom. i

A'secondary feature of novelty is the connection of la plurality of jacketed lubricators so that the various jackets receive heat from thesame working space, while the individual lubricators operate to feed oilto different cylinders or working spaces. lThis last arrangement ispeculiarly desirable with compound or multi-stage air pumps, as itpermits the heated air lto be taken from the highest stage, thussecuring the highest temperature. I l

The invention has particular utility in connection with the air pumpsused in railway air brake service, because such pumps are placed inexposed positions and are subject to thel eifects of varying atmospherictemperatures.

yThe invention is shown and' described as applied to a two-stage airpump of the type now in commonuse in railway air brake systems.

In the drawings Fig. 1 is an elevation of a portion of the Yair pump andconnected steam cylinders with two lubricators connected tofeed oil tothe respective air cylinders, and to be heated byair from the secondstage or high pressure cylinder.

Fig. 2 is a plan view of the lubricator bracket with the lubricator forthe second for the first stage cylinder removed.

. Fig.y 3 is a section on the line 3 3 of Fig.

Fig. 4 isa fragmentary section on the line 4 4 of Fig. 2. ,Y

The high pressure steam cylinder is shown at 1, the 'low pressure steam`cylinder at 2,

the low pressure air cylinder at 3, and the high pressure air cylinderat 4.' The cylinders are connected by the usual framestructure "5.lhehighpressure steaml piston (not shown) 1s connected to the lowpresure air piston (not shown) by the piston rodv 6. The low pressuresteam piston is connected Vto the high pressure air piston by the pistonrod 7. This is a familiar construction and obviously is subject tovariation. j In Fig. 1, the lubricator for the low pressure air cylinderis indicated generally by thenumeral 8, and the lubricator for the vhighpressure air cylinder is indicated generally by the numeral 9. These twolubricators are supported on aA ported bracket 10` which is bolted tothe high pressure cylinderhead. l y

Apipe 11 provides a free communication from the working space of the lowpressure f2; A portion of the bracket is broken away. Plainfield, in thecounty of Union and `State air cylinder to a port 13` in the bracket 10.i i

Similarly a pipe `12 provides an open coinmunication from the workingspace of the low pressure air cylinder to a similar port 14 in thebracket 10. Leading from the port 14.- isa passage 15 extendingtransversely of the bracket 10 and communicating with a similar port 16extending longitudinallyof the bracket 10. This port 16 servespas amanifold connection for conducting. the

heating air to the lubricators mounted on the bracket. It isconsequently provided with two small air ports y1'? and 18vwhich extendupward and terminate in the seats 19 and 20.

The seat 19 receives the low pressure cylinder lubricator, and the seat20 receives the high pressure cylinder lubricator. I The ports 13 and14C, previously mentioned, also terminate in the face of the seats 19and 20. The lubricator may be of any suitable type.

F or purposes of illustratiomwe have chosen that shown in our copendingapplication, Serial No. 510,801, iiled October 27, 1921, which hasissued as Patent 1,446,412, Feb. 20, 1923.

The high pressure and the low pressure lubricators are identical exceptpossibly for slight differences in port dimensions. Each lubricatorconsists of an oil reservoir 21 which is surrounded by a jacket 22. Thisjacket is. formed witha small port 23'. In.

the case of the high pressure lubricator shown in Fig. 3, this portcommunicates with the port 17 in the bracket 10. ln-the the portlain thebracket 10, and which communicates at its .upper end with the interiorof the reservoir 21 by means of a lateriall air port 27. VThe exactposition of the y port27 is not material, except that it is above thehighest oil level in the reservoir Parallelwith the;port 26is an oilport 28 which communicates with the interior of the reservoir by arelatively minute port 29 located near but slightly abovethe bottom ofthe reservoir 21. The port 28 communicates with the port26 by arelatively minute port 30 which isopposed to the air port 27.

The operation of the oil cup may bedescribed with reference to the highpressure lubricatorshown in Fig. v3. As the piston reciprocates in theair pump, there are wide and sudden iiuctuations in pressure which arecommunicated by the port 26 to the oil reservoir. These pressureHuctuations lead to; the injection` ofminute, quantities of :oil throughthe port 30 into the air port 26. The oil meets the air entering throughthel portsI 27 j and is :atomized and carried yto the air cylinderthrough the pipe 12... These same surges of pressure in the pipe 12leadlto the flow of compressed air to the jackets 22, and, as this airis. heated by `thel compression ofthe pump, it leads to the maintenanceof Vsuitable elevated temperatures ofthe oil in the reservoirs 21. Itwill be noted that the jackets 220i both lubricators areconnected. tothehigh pressureair cylinder through `the pipe `12. The pipe 12thusservespnotV only` to heat both lubricators,..but to. conduct thek oilfromy the high pressure lubricatorvto the-high pressure cylinder, Pipa11 merely` serves to conduct oil from the low pressure lubricator to thelow pressure cylinder.

The invention is particularly applicable to any lubricator of the classin which surges of pressure fluid back and forth between the` workingspace of the cylinderand the reservoir 0i` thelubricator serve totransfer the oil from the reservoir to the cylinder, as there isinherently present in this type of lubricator the necessary airconnection from which the .supplyr of'jacketrair may be derived. Theinvention is, however, applicable to other types of lubricator, and wedo not mean even by implication to limit our'y claims to ,the use ofthis particular type oflubricator, or to the particular example thereofshown in thedrawings. The lubricator structurek described herein isclaimed in `our copending application; above identified,` andconsequentlyl is vnot claimed inthe present application.

While the .various lubricators are lprovided with individual jackets-i,it is obvious that the. variousjackets areconnected together by themanifold-16, andl hencei'orm in effect a single jacketstructure. Indeed,except for manufacturingv considerations, there is .no -reason why eachlubricator reservoir should be formed withan individual jacket. Incertain. of the claims, we use'the term jacket structure?? for thepurpose of avoiding l. any such limiting, implication.

What isfclaimed is Y j 1. The combination of a plurality of cylindershaving corresponding working spaces-in'which fluctuations of fluidpressure occur through diierent;pressureranges; a plurality oflubricators"havingv oil reservoirs connected tofeed oil to respectivecylinders; a jacket structure surrounding. said' reservoirs; and aconnection between thel inf teriorsof said-jacket structure and theworking. space of a cylinderhavinga=highpresure range.-

2. The., combinationv of a plurality., of cylinders having correspondingworkin spaceszin each of which `fluctuations offui pressure occur;aplurality` of lubricators one4 forl eachcylinder, each lubricatorhaving an. oil reservoir, an.. oil-feedingport, a jacket surroundingIsaid reservoir and` a port leading to the jacket; albracket` forsupporting and connecting said VVlubricators havingoil-feeding portsconnecting with the ,oil-feeding ports of thevariousJ lubricators and amanifold port leading from one oil-feeding port in thebracketandconnecting withl the jacket ports -ot alltheflubri cators; andconnections from a. working space1 of each cylindery to` a-.-corresponding oil-feeding port of the bracluet.-l`

3. The combination, of apluarli-ty `of cylinders having correspondingworking, spaces in Veach of which liuctuat'ionsotuid pressurey occur apluralityr of flubricators, ...one

for each cylinder, each iubricator having an oil reservoir, a jacketsurrounding said res:- ervoir, a mounting seat and separate portsextending from said seat to Said reservoir and to saidjacketrespectively; a bracket having seats for supporting and connectingrespective lubricators and Jformed With oil ports each registering Withthe reservoir port of a corresponding lubricator, and a l0 manifold portregistering with the jacket ports of the various lubricators; andconnections from respective Working spaces to the corresponding oilports in the bracket and from one Working space to the manifold port inthe bracket.

In testimony whereof We have signed our names to this specification.

HENRY F. BICKEL. BLYTHE J. MINNER.

